#!/usr/env/bin python
# -*- coding: utf-8 -*-

# @Time    : 2020/1/7 21:55|21:55
# @Author  : yangdingyi
# @File    : 1311. 获取你好友已观看的视频
# @Software: PyCharm
from typing import List
from collections import Counter


class Solution:
    def watchedVideosByFriends(self, watchedVideos: List[List[str]], friends: List[List[int]], id: int, level: int) -> List[str]:
        data = []
        for item in watchedVideos:
            data.append(Counter(item))


        return []
